 public class KSNoChainOfRelations2Alter extends KSBadHornClauseException {    /** Construct an Exception which passes <code>msg</code> up the call stack.    This class handles Kinship System internal Exceptions which have detected    a Horn Clause in which there is no sequence of literals that can start from    a binding for Ego and result in a binding for Alter.  That is, there is no    chain of relations that leads from Ego to Alter.        @param	msg	a String describing the exact error found.     */    KSNoChainOfRelations2Alter(String msg) {         super(msg);    }  //  end of constructor }  //  end of public class KSNoChainOfRelations2Alter 